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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

common/InterruptIn.cpp@9:0ce32e54c9a7, 2013-06-10 (annotated)

Committer:
emilmont
Date:
Mon Jun 10 16:03:00 2013 +0100
Revision:
9:0ce32e54c9a7
Parent:
cpp/InterruptIn.cpp@2:143cac498751
Child:
10:3bc89ef62ce7
Refactoring of the mbed SDK:

- Provide a well defined HAL and API

- Keep separated the HAL implementations for the different targets

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:fd0d7bdfcdc2 1 /* mbed Microcontroller Library
emilmont 2:143cac498751 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 0:fd0d7bdfcdc2 3 *
emilmont 2:143cac498751 4 * Licensed under the Apache License, Version 2.0 (the "License");
emilmont 2:143cac498751 5 * you may not use this file except in compliance with the License.
emilmont 2:143cac498751 6 * You may obtain a copy of the License at
mbed_official 0:fd0d7bdfcdc2 7 *
emilmont 2:143cac498751 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 0:fd0d7bdfcdc2 9 *
emilmont 2:143cac498751 10 * Unless required by applicable law or agreed to in writing, software
emilmont 2:143cac498751 11 * distributed under the License is distributed on an "AS IS" BASIS,
emilmont 2:143cac498751 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
emilmont 2:143cac498751 13 * See the License for the specific language governing permissions and
emilmont 2:143cac498751 14 * limitations under the License.
mbed_official 0:fd0d7bdfcdc2 15 */
mbed_official 0:fd0d7bdfcdc2 16 #include "InterruptIn.h"
mbed_official 0:fd0d7bdfcdc2 17
mbed_official 0:fd0d7bdfcdc2 18 #if DEVICE_INTERRUPTIN
mbed_official 0:fd0d7bdfcdc2 19
mbed_official 0:fd0d7bdfcdc2 20 namespace mbed {
mbed_official 0:fd0d7bdfcdc2 21
mbed_official 0:fd0d7bdfcdc2 22 InterruptIn::InterruptIn(PinName pin) {
emilmont 2:143cac498751 23 gpio_irq_init(&gpio_irq, pin, (&InterruptIn::_irq_handler), (uint32_t)this);
mbed_official 0:fd0d7bdfcdc2 24 gpio_init(&gpio, pin, PIN_INPUT);
mbed_official 0:fd0d7bdfcdc2 25 }
mbed_official 0:fd0d7bdfcdc2 26
mbed_official 0:fd0d7bdfcdc2 27 InterruptIn::~InterruptIn() {
mbed_official 0:fd0d7bdfcdc2 28 gpio_irq_free(&gpio_irq);
mbed_official 0:fd0d7bdfcdc2 29 }
mbed_official 0:fd0d7bdfcdc2 30
emilmont 2:143cac498751 31 int InterruptIn::read() {
mbed_official 0:fd0d7bdfcdc2 32 return gpio_read(&gpio);
mbed_official 0:fd0d7bdfcdc2 33 }
mbed_official 0:fd0d7bdfcdc2 34
mbed_official 0:fd0d7bdfcdc2 35 void InterruptIn::mode(PinMode pull) {
mbed_official 0:fd0d7bdfcdc2 36 gpio_mode(&gpio, pull);
mbed_official 0:fd0d7bdfcdc2 37 }
mbed_official 0:fd0d7bdfcdc2 38
mbed_official 0:fd0d7bdfcdc2 39 void InterruptIn::rise(void (*fptr)(void)) {
mbed_official 0:fd0d7bdfcdc2 40 if (fptr) {
mbed_official 0:fd0d7bdfcdc2 41 _rise.attach(fptr);
mbed_official 0:fd0d7bdfcdc2 42 gpio_irq_set(&gpio_irq, IRQ_RISE, 1);
mbed_official 0:fd0d7bdfcdc2 43 } else {
mbed_official 0:fd0d7bdfcdc2 44 gpio_irq_set(&gpio_irq, IRQ_RISE, 0);
mbed_official 0:fd0d7bdfcdc2 45 }
mbed_official 0:fd0d7bdfcdc2 46 }
mbed_official 0:fd0d7bdfcdc2 47
mbed_official 0:fd0d7bdfcdc2 48 void InterruptIn::fall(void (*fptr)(void)) {
mbed_official 0:fd0d7bdfcdc2 49 if (fptr) {
mbed_official 0:fd0d7bdfcdc2 50 _fall.attach(fptr);
mbed_official 0:fd0d7bdfcdc2 51 gpio_irq_set(&gpio_irq, IRQ_FALL, 1);
mbed_official 0:fd0d7bdfcdc2 52 } else {
mbed_official 0:fd0d7bdfcdc2 53 gpio_irq_set(&gpio_irq, IRQ_FALL, 0);
mbed_official 0:fd0d7bdfcdc2 54 }
mbed_official 0:fd0d7bdfcdc2 55 }
mbed_official 0:fd0d7bdfcdc2 56
mbed_official 0:fd0d7bdfcdc2 57 void InterruptIn::_irq_handler(uint32_t id, gpio_irq_event event) {
mbed_official 0:fd0d7bdfcdc2 58 InterruptIn *handler = (InterruptIn*)id;
mbed_official 0:fd0d7bdfcdc2 59 switch (event) {
mbed_official 0:fd0d7bdfcdc2 60 case IRQ_RISE: handler->_rise.call(); break;
mbed_official 0:fd0d7bdfcdc2 61 case IRQ_FALL: handler->_fall.call(); break;
mbed_official 0:fd0d7bdfcdc2 62 case IRQ_NONE: break;
mbed_official 0:fd0d7bdfcdc2 63 }
mbed_official 0:fd0d7bdfcdc2 64 }
mbed_official 0:fd0d7bdfcdc2 65
mbed_official 0:fd0d7bdfcdc2 66 #ifdef MBED_OPERATORS
mbed_official 0:fd0d7bdfcdc2 67 InterruptIn::operator int() {
mbed_official 0:fd0d7bdfcdc2 68 return read();
mbed_official 0:fd0d7bdfcdc2 69 }
mbed_official 0:fd0d7bdfcdc2 70 #endif
mbed_official 0:fd0d7bdfcdc2 71
mbed_official 0:fd0d7bdfcdc2 72 } // namespace mbed
mbed_official 0:fd0d7bdfcdc2 73
mbed_official 0:fd0d7bdfcdc2 74 #endif